Friction-clutch coupling.



PATENTED JAN. 8, 1907.

I H. H. BENN.

, FRICTION CLUTCH COUPLING.

APPLICATION FILED MAR. 21, 1906.

. 2 SHEETS-SHEET 1.

I, I I

r /I E PATENTED JAN. 8,1907.

H. H. BENN.

FRICTION CLUTCH COUPLING.

APPLICATION FILED MAR. 21, 1906.

2 SHEETSSHEET 2.

[NVE/VTOR HM N l- 5W.

Allomeyn;

QHANS HAMILTON BENN, or LONDON, ENGLAN FRICTION-CLUTCH COUPLING.

To all whom it may concern:

Be it. known that I, HANS .HAMILTON BENN, a subject of the King of Great Britain,

residing at 7 Montpelier Square, Knights bridge, London, Middlesex, England, have invented new and useful Improvements in or Relating to Friction-Clutch Couplings, of which the-following is a specification.

My invention relates to friction-clutches for coupling shafts and pulleys of the kind described in the specification of my former British patent, No. 8,854 of 1899.

According to the invention my im roved clutch"com ilrises a hollow drum, which is secured tot e end of one of the shafts to be coupled, and a disk, which is keyed to the adjacent endof the other shaft, which extends into the hollow drum in such a manner that the said disk isin close roximity to the inner face of the drum. T e outer end or cover of the drum is adjustably attached to the drum-body by means of a screw-thread and is provided witha central sleeve adapted to form a bearing for the second shaft and with slots or holes, by means ,of which it can be adjusted in position through the medium of a spanner or the like. The inner face of the drum-cover is provided with projecting pins, upon which is mounted a friction plate or ring connected to the drum cover by means of toggle-linkssay four in numberwhich are connected together at their outer ends or outside the drum or at the ends of their extensions by means of springs in such a manner that they are normally extended, so as to force the friction plate or ring against the disk and the latter against the inner face of the drum, thereby locking the two shaft parts together.

To disengage the clutch, I provide for actuating the toggle-links against the action of the springs, and to this end the said links are provided with extensions passing through the cover and having downwardly-extending arms carrying rollers bearing upon a conical head adapted to slide upon the aforesaid drum-sleeve in such a manner that when the said sleeve is slid toward the drum the togglelinks are bent, thus withdrawing the frictionring from the disk, or the toggle-links may be connected to the sliding head by means D of links.

To enable the invention to be fullyunder- Specification of Letters Patent.-

Application filed March 21, 1906. Serial No. 307,288.

Patented Jan. 8, 1907.

stood, 'I will describe it by reference to the accompanying drawings, in which Figure 1 is a vertical section ofa clutch constructed according to the invention, the

clutch being shown in the operative position;

and Fig. 2 is a view similar to Fig. 1, showing the clutch disengaged. Fig. 3 is a section similar to Figs. 1 and 2, the section being in another plane. Fig. 4 is a face view with outer oil-cover removed, illustrating the connection of the toggle-links by thesprings; and Figs. 5 and 6 are views similar to Figs.

1 and 2, illustrating a modification.

a represents, say, the driving-shaft, and b the driven shaft. e

c is the drum, which is bolted to the en of the driving-shaft a, and (l is the disk, which is likewise bolted to the inner end of the shaft 1), the said shaft 6 extending into the drum 0 in such a manner that the disk d is brought into proximity to the inner face of the said drum 0. e is the drum-cover, which is screwed into the open end of the drum-body 0,. as shown at f, and g is the sleeve, which is provided at the center of the said cover 2.

h is the friction ring or disk, which is located within the drum 0 and in proximity to the disk (1, and t j 'i j are the pairs of links forming the toggles for connecting the friction-ring h with the cover 6. The links & are pivoted to the friction-ring h at i at one end and at the other end to the links 3', which are themselves pivoted at j to the drum-cover e.

The links j extend through holes in the cover e and are provided with extensions k, by means of which they are connected together through the medium of the springs Z.

in the cover 0 and friction-ring h, the said pins locking these two parts together, but permitting them to move toward or recede from one another. g

m m are the downwardly-extending arms formed upon the links 7', and n represents the rollers, which are provided at the lower ends of the same arms, 0 being the head, which is (See Fig. 4.) By this means the springs normally extend the toggle-links 'i j, as shown in Fig. 1,

' loosely mounted upon the sleeve g in such a manner that it can slide thereon. This head is coned, as shown at 7), and by sliding the said head toward the drum-cover e the arms m are raised, so as to break the joint of the toggle- ]inks against the action of the springs 'l, and thus release the coupling.

q is a cover, which is provided as a-protection against dust and to retain the oil with which the drum is partially filled.

Figs. 5 and 6 illustrate the modification whereinin lieu of the arms 'm, rollers n, and conical head 0 I make use of links r 7, connecting the links 7" to the said sliding head 0.

In practice I find it advantageous to perforate the disk (1, so as to provide receptacles for the lubricant, the said lubricant being forced into these holes when the clutch is put into gear, thereby enabling engagement to take place rapidly, the oil remaining in the perforations until the clutch is again disengaged.

The operation of the coupling is as follows-that is to say, when the sliding head 0 is withdrawn, as shown in Figs. 1 and 5, the toggle-links are extended by the action of the springs Z Z, so as to force the friction-ring h into contact with the disk (1 and the latter into contact with the inner face'of the drum '0, thereby locking the said disk and drum to.- get'herJ To put the clutch out of gear, the sliding head 0 is'pushed toward the cover e of the drum, thus withdrawing the frictionring hand releasing the disk (1 of pressure.

' Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, 'I- declare that what I claim is-' 1.1-In a clutch-coupling of the kind described, the combination with a driving shaft and a driven shaftin line with one another and having their ends adjacent, of a friction-disk mounted on the end of one of said shafts, a drum mounted on the adjacent end of the other of said shafts, a friction-ring mounted on said drum in line with said friction-disk and capable of moving into and out of'engagement with said disk, toggle-links pivoted at one end to said ring and pivoted at their other end to said drum and means for operating said toggle-links to throw said ring into-and out of engagement with said disk, substantially as described.

connected with said toggle-links for normally' holding said ring in engagement with said disk and means for operating said togglelinks to throw said ring out of engagement with said disk, substantially as described.

3. In a clutch-coupling of the kind described, the combination with a drivingshaft and a driven shaft in line with one another and having their ends adjacent, of a hollow drum secured to the end of one of said shafts and provided with a friction-face, a friction-disk secured-to the adjacent end of the other of said shafts, in line with and adjacent to said friction-face of said drum, a friction-ring mounted within said drum-in line with said fricti0n-disk andadjacent to its rear face, said ring being capable of moving into engagement with said disk to throw said disk into engagement with the frictionface of said drum, to gle-links pivoted at one end to said ring an ivoted at their other end to said drum an means for operating said toggle-links to throw said friction-ring into and out of engagement with said'disk, substantially as described.

4. In a clutch-coupling of the 'kind described, the combination with a drivingshaft' and a driven shaft-in line with one another'and having their ends adjacent, of a hollow drum secured to the end of one of said shafts andprovided with a-friction-face, a friction-disk secured to the adjacent end of the other of said shafts','in line with and ad- --jacent to said friction-face of said drum, a 'frictionqing-mounted within saiddrum in line with said friction-disk and adjacent to its rear face, said ring being capable of mov ing into engagement with said disk to throw said disk into engagement with the friction-- face of said drum, toggle-links connecting said ring with said drum, coiled springs connecting said toggle-links and adapted to operate said links to normally hold said frictionring in engagement with said friction-disk anr means for operating said-toggle-linksto throw said ring out of enga ement with said disk, substantially as descri ed.

5.- In a clutch-coupling of the kind described, the combination with a drivingshaft and a driven shaft in line with one another and having their ends adjacent, of a hollow drum secured-tothe end of one of said shafts and provided with a friction-face, a friction-disk'secured to the adjacent end of the other of said shafts, in line with and adjaoent to said friction-face of said drum, a friction-ring mounted Within said drum in line with said friction-disk and adjacent to its rear face, said ring being capable of moving into engagement with said disk to throw said disk into engagement with'the frictionface of said drum, toggle-links connectin said ring with said drum, a sliding head mounted on one of said shafts, links connecting said sliding head with said toggle-links and means for normally retaining said toggle-links in osition to lock said ring in engagement with said disk, substantially as described,

6. In a clutch-coupling of the kind described, the combination with, a drivingshaft and a driven shaft in line with one another and having their ends adjacent, of a hollow drum secured to the end of one of said shafts and provided witha friction-face, a friction-disk secured to the adjacent end of the other of said shafts, in line with and ad- I 'jacent to said frietion-faceofsaid drum, a

friction-ring mounted within said drum'in line with said friction-disk and adjacent to its rear face, said ring being capable of moving into engagementwith said disk to throw said disk into engagement with the frictionface of said drum, toggle-links connectin said rin with said drum, a sliding hea mounte on one of said shafts, links connect ing said sliding head with said toggle-links,

coiled springs connecting said toggle-links and adapted to normally retain said links in a position to lock said friction-rin in engage ment with said friction-disk an a detachable cover ada ted to be secured in the open end of said hol ow drum whereby the clutch- A. U. DENY. 

